Oracle Acme Packet 4500, Hardware Installation And Maintenance Manual

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80 Acme Packet 4500 Hardware Installation and Maintenance Guide
MAINTENANCE
Caution An over-temperature condition can stop packet processing.
If you do not have a replacement fan module nearby, always shut down the system
and disconnect the power before removing the malfunctioning fan module to
replace at a later time.
When removing and replacing a fan module, remember to first ground yourself
using appropriate ESD grounding equipment such as a wrist or heel strap.
To remove the fan module:
1. Press two fingers against the left end of the plastic fan bezel and pull directly
toward you. The fan bezel comes off of the chassis. Set the fan bezel aside.
Figure 6 - 104. Removing the Front Bezel
2. Pinch the black foam air filter at one of its corners and pull it directly away from
the chassis. You will see the fan module.
Figure 6 - 105. Removing Air Filter from Chassis
3. Unscrew the two captive screws at each end of the fan module using a #2 Phillips
screwdriver.
Figure 6 - 106. Air Filter Removed from Chassis
4. Holding the fan assembly pull tab, pull the module directly toward you, out of
the chassis. This may require a firm tug.
Figure 6 - 107. Removing the Fan Module by the Pull Tab